International Circulation: Professor Hu, how about your experience here at AHA 2009, can you talk about some sessions that you thought were very informative or very useful as a Chinese cardiologist?
《国际循环》：胡教授，您对AHA 2009的体验如何，作为中国的心血管专家，您认为哪些会议内容更丰富，或有实用价值？
The little notebooks are also very useful for copying or summarizing something one has read.
这个小记事本在抄写和总结人们读过的东西是也是十分有用的。
About 80 percent of the fusion energy released is in the form of those neutrons, so the reaction isn't very healthy (or useful) for a starship.
大约80百分之的聚变能以中子的形式释放出来，所以这个核反应不是很大（或有用）对于一个星际飞船。
As part of the Assess Iteration task, teams often identify either work products they produced that were not very useful or additional work products that would have been helpful.
作为评估迭代任务的一部分，团队常常要识别出那些并不十分有用的工作产品，或是那些有用的附加工作产品。
This becomes very useful when you need to have a mix of inline and annoated methods and/or calls to different method interfaces inside the same transaction.
当需要在同一个事务中混合内联和方法和/或对不同方法接口的调用时，这就变得非常有用了。
Eventually, she realized that for creating a character, "whatever I learned in school or experience in life is very useful."
最后，她意识到那是为了创造一个人物。“所有我在学校所学到的或是生活中所经历的都是非常有用的。”
When monitoring or analyzing performance reports, it is very useful to correlate the reported performance with activities on the server side (through logs, traces, for instance).
当您在监视或者分析性能报告时，将报告性能与服务器端(例如，通过日志，追踪)联系起来是非常有用的。
Being able to detect damage to a bridge or tunnel and report it automatically would be very useful.
能发觉损坏的桥或隧道并主动把其记录下来，这举动将会非常有用。
A very short post might not need any subheadings - but once your post is more than 400 words or so, it's useful to break it up.
一篇很短的博文也许不需要任何小标题，但是一旦你的博文超过400字，利用小标题来分层就变得很实用。
I would have found a tool which saved the XML documents, performed database-like queries on nodes, and retrieved partial or full documents very useful.
我本来想找到一种非常有用的工具，它可以保存XML文档、在节点上执行类似数据库的查询以及检索部分或整个文档。
Baidu Zhidao, in particular, is very useful for when you come across a neologism or a chengyu that isn't in your dictionaries.
特别要说的是“百度知道”，当你遇到一个新造词或你字典里没有的成语，它会非常有用。
One very useful feature of slicing is that slicing too much, going before the start or past the end, doesn't throw an exception but simply defaults to the start or end of the sequence, as appropriate.
进行切片的一个非常有用的特性是，在开始之前或结束之后进行较多切片不会抛出异常，只是相应地以默认方式开始或结束该序列。
This could be very useful if you want to figure out whether a particular problem is due to code within your plug-in or on the DB2 side.
这对于断定某个特定问题是由插件中的代码造成的，还是由DB 2引起的是非常有用的。
We call a group of onscreen bubbles a working set; working sets can be very useful for programming tools that naturally output multiple methods or locations in code.
我们把屏幕上的一组气泡称为一个工作集，工作集非常利于那些经常输出多个方法或者代码位置的编程工具。
This update is designed to reduce rankings for low-quality sites - sites which are low-value add for users, copy content from other websites or sites that are just not very useful.
这次更新的目的是降低劣质网站的排名，包括对用户价值低的、从其他网站拷贝内容的网站或不太有用的网站。
This is unfortunate because XSL-FO can be very useful for such tasks as producing PDF or Postscript files from XML documents.
这种情形令人遗憾，因为对于将X ML文档制作成pdf或Postscript文件这样的任务，XSL - fo会非常有用。
This is a very useful tool that allows the stylesheet writer to exclude completely certain elements, templates, or entire stylesheet modules from the transformation if an XPath condition is not met.
这是一种非常有用的工具，如果没有满足XPath条件，样式表作者可以通过该工具从转换中去掉某个完整的元素、模板或者整个样式表模块。
If you need to produce or consume RSS or Atom feeds, this is a very useful library.
如果需要生成或使用rss或atomfeed，这是一个非常有用的库。
Ping is a very useful tool for determining whether or not a machine is accepting packets, but often you want to know more than that, like whether a Web server is actually responding on that machine.
Ping是非常有用的工具，它用于确定机器是否正在接收包，但是通常您想知道的更多，比如Web服务器是否确实响应该机器。
This is very useful when an application is brand new or the developer does not have much experience with databases.
当应用程序是全新的或开发者不具有很多数据库开发经验时，该方法非常有用。
This documentation is very useful when transitioning a system to another person or organization.
当把这个系统移交给另一个人或组织时，这个文档很有用。
This post is about one class which is very often forgotten or even unknown to many but which exposes some very useful methods.
这个帖子是关于一类，这是经常被遗忘，甚至不知道的很多，但其中暴露出一些非常有用的方法。
The -0 (zero) flag is very useful if you want to read a full paragraph or a full file into a single string.
如果您想将整个段落或整篇文件读入到单个字符串，那么- 0(零)标志非常有用。
The IBM AIX job spooler is a very useful built-in utility on all AIX systems but is rarely enabled or utilized.
IBMAIX作业假脱机程序是所有AIX系统上非常有用的内置实用程序，但是用户很少启用或使用它。
SQLSTATE messages give specific information about what caused an error or warning condition, and are very useful for resolving errors.
SQLSTATE消息可以提供关于导致错误或警告状况的原因的特定信息，这对于解决错误很有用。
This service proves to be very useful for many mobile users who lack the time or patience to type the long names of the places they want to go to.
这项服务被证明非常有效，因为许多手机用户没有时间或没有耐性来输入他们想去的地方的那一长串名字。
These utilities are very useful when you need to batch or script AD hoc transfers.
当需要通过批处理或脚本执行特殊传输时，这些实用程序非常有用。
These utilities are very useful when you need to batch or script AD hoc transfers.
当需要通过批处理或脚本执行特殊传输时，这些实用程序非常有用。
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